§ 1804-A. Informal and simplified procedure on commercial claims. The
court shall conduct hearings upon commercial claims in such manner as to
do substantial justice between the parties according to the rules of
substantive law and shall not be bound by statutory provisions or rules
of practice, procedure, pleading or evidence, except statutory
provisions relating to privileged communications and personal
transactions or communications with a decedent or person with a mental
illness. An itemized bill or invoice, receipted or marked paid, or two
itemized estimates for services or repairs, are admissible in evidence
and are prima facie evidence of the reasonable value and necessity of
such services and repairs. Disclosure shall be unavailable in commercial
claims procedure except upon order of the court on showing of proper
circumstances. The provisions of this act and the rules of this court,
together with the statutes and rules governing supreme court practice,
shall apply to claims brought under this article so far as the same can
be made applicable and are not in conflict with the provisions of this
article; in case of conflict, the provisions of this article shall
control.